fix(commenter): fix nerdcommenter for markdown

bundle/nerdcommenter/plugin/nerdcommenter.vim

@@ -1205,6 +1205,10 @@ function! NERDCommentIsLineCommented(lineNo)
     return s:IsInSexyComment(a:lineNo) || s:IsCommentedFromStartOfLine(s:Left(), theLine) || s:IsCommentedFromStartOfLine(s:Left({'alt': 1}), theLine)
 endfunction
 
+function! NERDCommentSetUpForNewFiletype(ft) abort
+  call s:SetUpForNewFiletype(a:ft, 1)
+endfunction
+
 " Function: NERDComment(mode, type) function
 " This function is a Wrapper for the main commenting functions
 "

config/plugins/nerdcommenter.vim

@@ -30,19 +30,19 @@ let g:NERDTrimTrailingWhitespace = 1
 " Always use alternative delimiter
 let g:NERD_c_alt_style = 1
 let g:NERDCustomDelimiters = {'c': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' }}
-let g:ft = ''
+let s:ft = ''
 fu! NERDCommenter_before()
   if &ft ==# 'markdown'
-    let g:ft = 'markdown'
     let cf = context_filetype#get()
     if cf.filetype !=# 'markdown'
-      exe 'setf ' . cf.filetype
+      let s:ft = 'markdown'
+      call NERDCommentSetUpForNewFiletype(cf.filetype)
     endif
   endif
 endfu
 fu! NERDCommenter_after()
-  if g:ft ==# 'markdown'
-    setf markdown
-    let g:ft = ''
+  if s:ft ==# 'markdown'
+      call NERDCommentSetUpForNewFiletype(s:ft)
+      let s:ft = ''
   endif
 endfu

docs/bundle-plugins.md

@@ -54,6 +54,7 @@ These plugins are changed based on a specific version of origin plugin.
 - `jedi-vim`: based on [jedi-vim@e82d07](https://github.com/davidhalter/jedi-vim/tree/e82d07faa17c3b3fe04b4fa6ab074e8e8601a596)
 - `vim-unstack`: based on [vim-unstack@9b191419](https://github.com/mattboehm/vim-unstack/tree/9b191419b4d3f26225a5ae3df5e409c62b426941)
 - `tagbar`: based on [tagbar@af3ce7c](https://github.com/preservim/tagbar/tree/af3ce7c3cec81f2852bdb0a0651d2485fcd01214)
+- `nerdcommenter`: based on [nerdcommenter@fade3d4b2](https://github.com/preservim/nerdcommenter/tree/fade3d4b26f5a0d58f256a06ba7b0a04d9fb4f3b)
 
 #### `core` layer